| Literature DB >> 15881829 |
Myoungsu Park1, Chungwoo Kim, Jinchul Yang, Hyoungseok Lee, Wansik Shin, Seunghwan Kim, Tongmin Sa.
Abstract
Free-living nitrogen fixing bacteria were isolated from rhizosphere of seven different plant namely sesame, maize, wheat, soybean, lettuce, pepper and rice grown in Chungbuk Province, Korea. Five isolates with nitrogenase activity above 150nmol(-1) mg(-1) protein were identified based on, phenotypic and 16S rDNA sequences analysis. The strains were identified as Stenotrophomonas maltophilia (PM-1, PM-26), Bacillus fusiformis (PM-5, PM-24) and Pseudomonas fluorescens (PM-13), respectively. All the isolates produced indole-3-acetic acid (IAA), in the presence of tryptophan, ranging from 100.4 microg ml(-1) (PM-13) to 255 microg ml(-1) (PM-24). The isolate PM-24 (Bacillus fusiformis) exhibiting highest nitrogenase activity (3677.81 nmol h(-1) mg(-1) protein) and IAA production (255microg ml(-1)) has a promising potential for developing as a plant growth promoting rhizobacteria.Entities:
Mesh：
Substances：
Year: 2005 PMID： 15881829 DOI： 10.1016/j.micres.2004.10.003
Source DB: PubMed Journal: Microbiol Res ISSN： 0944-5013 Impact factor: 5.415